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A family shopping at the mall. They started shopping at 1:00 pm. By 2:00 pm. They had already spent $60. They finished at 5:00 pm at which they had spent $180 total during the time they were at the mall. What is their average rate of spending in dollars per hour from 2:00 pm to 5:00 pm?

1 Answer

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Final answer:

The family's average rate of spending in dollars per hour from 2:00 pm to 5:00 pm is $40.

Step-by-step explanation:

To calculate the average rate of spending in dollars per hour from 2:00 pm to 5:00 pm, we need to find the total amount spent during that time period and divide it by the number of hours.

  1. From 1:00 pm to 2:00 pm, the family spent $60.
  2. From 2:00 pm to 5:00 pm, the family spent $180 - $60 = $120.
  3. The time period from 2:00 pm to 5:00 pm is 3 hours.
  4. The average rate of spending per hour is $120 / 3 = $40 per hour.

Therefore, the family's average rate of spending in dollars per hour from 2:00 pm to 5:00 pm is $40.

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